for mounted floor tom my preference is 14x11
- the tone is low enough, it even sounds like a 16 legged flr tom.
- the weight is just right, because 16 would be to heavy for mount.
for legged floor tom, i prefer 16x14
- looks cooler, sounds bigger, the sustain is just what it supposed to be.
(14 is kinda awkward for legged floor tom, especially when you try to roll from 10->12->14. you'll feel that there is a gap. also 14 fell short on sustain and low tone..)
just my observation